add_random_kstack_offset(9)

🌸 add_random_kstack_offset(9) 🌸

okay bestie, welcome to the Kernel API Manual, section 9 — this is the add_random_kstack_offset page and it's giving kernel-internals realness. 🫶

💖 NAME 💖

add_random_kstack_offset — Increase stack utilization by a random offset. periodt. 💅

✨ SYNOPSIS ✨

add_random_kstack_offset

🦋 DESCRIPTION 🦋

okay so this should be used in the syscall entry path after user registers have been stored to the stack. 🧚

Preemption may be enabled. ✅

For testing the resulting entropy, please see: tools/testing/selftests/lkdtm/stack-entropy.sh — that's the path, bestie. 🔥

👑 SEE ALSO 👑

• Kernel file ./include/linux/randomize_kstack.h
• add_random_kstack_offset_irqsoff(9)

💖 xoxo, that's the whole page — source ./include/linux, dated October 2026, for add_random_kstack_offset(9). 💖